繼電器
繼電器詳細說明
三相電流繼電器

1 ASJ系列數字式量度繼電器
1.1 概述
ASJ系列數字式量度繼電器(以下簡稱繼電器),采用32位高性能CPU,實時采樣三相交流電流、三相交流電壓信號,采用有效值計算方法,在較寬的頻率范圍內實現了較高精度的測量。集成有多種保護功能,僅需簡單選擇即可實現保護的投入或退出、報警或跳閘;精度高、功耗小、動作快、返回系數高、無抖動,可用于需要電壓監控(電壓型:如發電機、變壓器和輸電線的繼電保護等)或電流監控(電流型:如電動機、變壓器和輸電線的過負荷和短路保護線路中)的場合,作為過電壓、欠電壓、過電流、欠電流、過頻率、欠頻率保護的閉鎖動作元件或啟動元件。
1.2 型號說明
1.3 通用技術條件
技術參數 | 指 標 |
通訊 | RS485接口、Modbus-RTU協議 |
輔助電源 | AC85~270V/DC100~350V,功耗5VA |
安全性 | 工頻耐壓:電源、電壓、電流輸入回路之間AC2kV/1min,50Hz |
絕緣電阻:輸入、輸出端對機殼>100MΩ | |
環境 | 工作溫度:-10℃~+55℃ |
儲存溫度:-20℃~+70℃ | |
相對濕度:5%~95%不結露 | |
海拔高度:≤2000m | |
污染等級 | 2級 |
防護等級 | IP20 |
安裝類別 | III級 |
1.4 產品特性
型 號 | 電 流 | 電 壓 | 頻率 | |||
功 能 | ASJ10-AI | ASJ10-AI3 | ASJ10-AV | ASJ10-AV3 | ASJ10-F | |
信號 | 二次側1A、5A | √ | √ | |||
輸入 | AC100V、220V、380V | √ | √ | √ | ||
測量 | 0-10A | √ | √ | |||
范圍 | 0.1-1.2Ue | √ | √ | |||
20-70Hz | √ | |||||
過載 | 持續1.2倍,瞬時10倍/5秒 | √ | √ | |||
倍數 | 持續1.2倍,瞬時2倍/1秒 | √ | √ | √ | ||
保護 | 起動超時、欠載、短路 | √ | √ | |||
功能 | 過載(定時限、反時限) | √ | √ | |||
欠壓、過壓 | √ | √ | ||||
欠頻率、過頻率 | √ | |||||
不平衡 | √ | √ | ||||
斷相 | √ | |||||
相序 | √ | |||||
繼電器輸出 | 數量 | 3常開或2常開1常閉 | ||||
觸點容量 | AC250V 3A或DC30V 3A |
1.5 外形及尺寸(mm)
1.6 接線端子
電流繼電器
電壓繼電器
頻率繼電器
1.7 過載保護電流—時間對照表及曲線圖
可選擇的脫扣曲線等級K | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
脫扣延時(S)誤差±10% | 三相平衡的負載,自冷態始 | |||||||
額定值Ie ×1.2 | 125 | 250 | 375 | 500 | 625 | 750 | 875 | 1000 |
×1.5 | 80 | 160 | 240 | 320 | 400 | 480 | 560 | 640 |
×2 | 45 | 90 | 135 | 180 | 225 | 270 | 315 | 360 |
×3 | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 |
×4 | 11.3 | 22.5 | 33.8 | 45 | 56.3 | 67.5 | 78.8 | 90 |
×5 | 7.2 | 14.4 | 21.6 | 28.8 | 36 | 43.2 | 50.4 | 57.6 |
×6 | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
×7.2 | 3.5 | 6.9 | 10.4 | 13.9 | 17.4 | 20.8 | 24.3 | 27.8 |
×8 | 2.8 | 5.6 | 8.4 | 11.3 | 14.1 | 16.9 | 19.7 | 22.5 |
1.8 應用方案示例
示例一 ASJ10-AI3在電動機保護中的應用
ASJ10-AI系列是一款能夠監視負載的監視繼電器,適用于需要進行電流保護的場合,如電動機、變壓器和輸電線的過負荷和短路保護線路中,隨時監視負載的電流狀況,能對負載的多種故障狀態進行保護,一旦發生故障,能及時將負載從系統中切除,從而起到保護作用。
示例二 ASJ10-AV3在光伏發電中的應用
ASJ10-AV系列是一款適用于監視三相饋電主電路的監視繼電器,它連接在饋電網、分散的電源系統和公共電網之間,一旦發現電網故障,ASJ10-AV能將發電系統從公共電網中斷開,從而起到保護作用。
DX5系列數字式電壓相序繼電器
DX5是“維繼”旗下的衍生產品,通過監測電壓進行間接的電動機保護,可以對三相電源的過壓、欠壓、動靜態缺相、逆相、三相電壓不平衡等故障進行監測和保護。和所有的“維繼”產品一樣,VJ5是一種會顯示的繼電器,具有精確設定和明明白白保護的優點,集電壓表、電壓繼電器、相序繼電器的功能于一身,是一種全功能的三相電源保護器。
主要功能:
電壓顯示
過電壓保護
欠電壓保護
動靜態缺相保護
三相電壓不平衡保護
相序保護
型號:
VJ-501: LCD顯示
VJ-201: LED顯示
接線圖:
西門子繼電器3RK1911-3BA00
3RK1315-6KS41-0AA5
3RK1315-6KS41-1AA0
3RK1315-6KS41-1AA3
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3RK1323-2AS54-1AA0
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3RK1325-6LS41-0AA3
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3RK1395-6LS71-3AD3-ZE07
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